[stella] Question about Circus Atari and BCD addition

[Stephen Anthony]

On June 20, 2007 01:58:45 pm bob.montgomery at thomson.com wrote:
> Hi,
>
> this is how Stella does BCD adds:

[snipped]

> If that's correct, then it looks like the 6507 first converts both
> operands to BCD, treating each nibble like a decimal digit (whether
> or not the nibble is <= 9), so $F0 = 150 and $FF = 165.

[snipped]

> So apparently adding $0A is exactly the same as adding $10.
>
> All assuming that Stella is accurate.

And if this isn't the correct functionality, I'd be very interested in 
knowing about it (so it can be fixed).

Steve